Activities
Shoring Systems
In urban centers where construction is dense, the excavation pits opened for the construction of basements and foundations must be supported by temporary and / or permanent shoring systems due to the fact that the structures to be constructed approach the land boundaries in a way that does not allow sloping excavation. Shoring system is an excavation pit support system with mostly temporary function, which is constructed to protect both the surrounding structures and the teams working in construction by using structural elements such as bored piles, mini piles, anchors, etc.
Ground improvement and foundation reinforcement
Stability (bearing capacity) and deformation problems arise in soft or loose soils during construction. In the absence of ground improvement in such soils, high deformations, slippage or collapse are inevitable. In loose sand soils, ground improvement is carried out to increase bearing capacity and reduce liquefaction potential, and in soft clay soils, ground improvement is generally carried out to increase bearing capacity, reduce or limit consolidation settlements.
Bored pile
Bored piles are defined in the literature as piles formed by filling the wells drilled by excavation or drilling in the ground with unreinforced or reinforced concrete. They can be manufactured in intermittent, tangent and intersecting forms according to the project, soil and groundwater conditions. Intersecting piles are preferred for the formation of a sealing curtain in excavations below the ground water level. Tangent piles can be used in soils where there is no water problem but there is a risk of material discharge between the piles, while intermittent piles can be applied in self-supporting soils where there is no material discharge risk and water problem. They can also be designed as cantilevered or supported according to their working principles. Cantilever bored piles can be connected to each other with a rigid cap to form a shoring system with arching capacity. Supported bored piles are shored by anchoring at intervals determined in the project.
Mini pile
Vertical structural support elements whose construction and working principle are similar to bored piles, but are manufactured in smaller diameters (20cm – 30cm – 40 cm) compared to bored piles are called mini piles. They can be preferred in shallow excavation depths where bored piling may be costly or in excavations in solid rock.
Prestressed ground anchors
Prestressed soil anchors are structural elements that support the shoring system horizontally by holding it with the force they receive from the solid ground layer outside the excavation pit. Ground anchors can be manufactured permanently or temporarily depending on the location of the structure within the plot. Anchorage materials may vary according to project and application conditions. In general, materials such as tendon (tensile element, coiled rope or rod reinforcement), injection, anchor plate, anchor head, wedge and plastic pipe and separator are used in anchorage manufacturing.
Ground survey
The ground survey, which is applied to analyze the lands before construction, is carried out to measure parameters such as the condition of the underground layers, depth, type of geological structure, electrical resistivity, foundation soil. The main purpose is to understand the behavior of a building in the face of an earthquake with these variables.
Geotechnical Project
It is the work of evaluating, reporting and designing the engineering features of the structure to be built in harmony with geological parameters and static projects.
Axial Pile Loading Test
Pile loading tests are performed to test the calculated bearing capacity and load-settlement behavior of bored piles in the field and to check the accuracy of the designs. Pile loading tests are widely used all over the world. Pile loading tests are performed in accordance with ASTM-D 1143.
Inclinometric Instrumentation Measurement
It is used to detect ground movement, its magnitude and direction.